Hydro-meteorological processes driving solute transport in Lake Victoria

Seema Paul, Jesper Oppelstrup
2020 Water Science  
9 This study explores by a vertically integrated tracer transport model, hydro-meteorological event 10 characteristics and their influence on solute transport. Changes in Hydro-meteorological 11 processes and increasing frequency of extreme weather events are responsible for changing the 12 lake water balance, influencing streamflow variations, and lake tracer transport. We compare 13 historical data over a long time with model data from a vertically integrated model in Comsol 14 Multiphysics.
more » ... l 14 Multiphysics. We consider water balance, sources of data uncertainty, correlations, extreme rain 15 and inflow years, and seasonal variations. The lake transport model has estimated soluble 16 loading and transportation. The results showed that the lake rainfall is seasonal; there are strong 17 correlations between tributary inflows and precipitation, and between lake outflow and water 18 level. It was found that "events" influence lake level fluctuations. The solute transport was 19 shown to vary more in wet periods. Modeled transportations were higher in Kenya and Uganda 20 lake zones than in Tanzanian zones. The major inflow, from the Kagera river, appears to strongly 21 influence lake solute transportation, so the composition of this river must be considered. 22
doi:10.1080/11104929.2020.1722416 fatcat:7tugrf4ajbfnjatvhrhx6r5sre